Process of producing warp-knitted fabrics.



M. A. MYERS & R KEENE. PROCESS OF PRODUCING WARP KNlTTED FABRICS.

APPLiCATiUN FIL'ED DEC. 30, 1916; m

Patented July 31, 191 7.

l in E UNITED STATES PATENT OFFICE- MARCUS A. MYERS, on NEW YORK, Ann nIcHAnn KEENE, or RICHMOND HILL, NEW YORK, ASSIGNORS 'ro JULIUS KAYSER a. 00 or new YORK N, Y A CORPORATION OF NEW YORK.

, rnocnss or rnonvcmc WARP-KNITTED FABRICS.

Application filed December 30, 1916. Serial No. 139,743.

1 '0 all whom it may concern:

Be it known-that we, Marcus A. MYEns and IIIGHARD'I{EENE, 'both citizens of the United States, and residents, respectively, of the borough of Manhattan and county'of NewYork and-Richmond Hill, borough and county of Queens, both in the city and State of New York, have invented a new and I1 nproved Procex of Producing Warp-KnittedFabrics, of which the following 1s a specification.

vredfthat by a; pecullar construction and method of operation of a warp knitting machine, we can produce a fabric h'av in thickness mi duce ak'warp knitted fabric presenting the appearance offabrics heretofore produced onlyby theweaving process upon a loom;

and we have also discovered that as a. re-

, sult of our process a peculiar-and perinacan nent optical effect is produced in the fabric in that the strips or parts hav ng the greater body or bulk of material present the appear a'ncc ofhaving greater density of color than the strips having the lesserbody or bulk of material, which effect we believe is entirely new in a warp knitted labric.

In the drawings hereof we illustrate those parts only of a warp knitting marl-line which are-immediately involved in carrying out on r process. a

knitting machine having thereon threads,

the spacing whereof is exaggerated for the sake of clearncss in illustration; Fig. i is a diagrannnatical vertical sectional view of the parts shown in Fig. 1 and also showing the movable guide bars pressure bar, needles, etc, mostly in section; Fig. 3 is a plan view of a piece of our new fabric.

In the drawings 1, 2 and 3 represent the beams or spools of a. warp knitting machine, 4, 5 and (i are respectively the spring tom sion bars for the beams 1. 2 and 3. T are the separator teeth supported upon the bar 8, as usual, 9 and 10 are the usual movable bars for the respective sets of guides 11 and 12, which have the usual eyes or openings 13 and 14 respectively in their ends through which the threads pass. 15 is the usual pressure bar, 10 the needle, 17 the usual needle guide.

strips or sections'of diifering ulk of material and thus pro 18, 19 and 20 are the threads respectiveiy from the beams 1, 2 and 3.

In the usual operation of such machinesthreads 18 and 19 only are employed. They respectively pass from the beams 1 and 2 over tension'bars 4 and 5, through the eyes of the guides 11 and 12, and are manipulated by the needles and co-acting parts in the usual way, and -the fabric thus produced is uniform in weight, thickness and appearanoe, all of it being substantially the same as 'the thin strips or portion s'shown at 21 in Fig. 3. For-the production of our new Patented July 31, 191 7.

will manipulate and present two threads to the needles and co-acting parts, whereas the ,guide 11 and its eye 13 will present one "thread only, and the added thread 20 is supplied from the upper beam, as stated, only at the places transversely of the fabric and of the widt-hs' desired. for the production of the strips or heavier or denser parts of the fabric, as clearly indicated in Fig. 1, that is to say, the threads 18 and 19 supplied from the beams 1 and 2, passing over their tension bars 4 and'5 rcsl'iectively, are clearly shown as extending entirely across the machine as in usual knitting, whereas the added thread 20 supplied from the beam 3 and passing over its tension bar (5 is shown as supplied intermittently only, that is to say, from such parts of the upper beam 3 as will coincide with the location and width of the desired stri 10s in the material. from the lieain 3 may, however, be disposed thereon in any preferred manneiyprovidcd they be sectionally gathcredrand guided by the separator teeth to engage with the appropriate or' necessary guides. The Sepa- .rator comb 7 manipulates all the threads in the usual manner, that is to say, when the two threads 18 and 19 only are employed, they pass between adjoining teeth of'the separator comb, but in those portions where the added thread 20 is introduced, all three of the threads'pass between tl ame adjoining teeth of the separator c all). In like manner in thoscportions of the knitting The threads where the two threads 18 and 19 only are or thin partsor' employed the respective needles and co-aeting parts manipulate thenronly for the pro 10 resulting fabric, instead of being the normal, or what we call the thin fabric, indicated at 21 in Fig. lias'longitudinally extending stripes or portions 2'2,.whieh enibody a greater weight or hulk of fabric than the intermediate portions because of the added threads. Attention is called to the fact that in Fig. 9, the number of threads shown in the section 21 are'subs'tantially the same as those 0 n the thielzer stripes or sections, whereas .obriously there should be more represented sections ln t neat:

how-ii." v

li -'\\'ill be oh nus. to those who tll'l' ftliniliar with anus art that if desired the i liasbeen'inadein-thc-drawiiigto illu [hate this lliilillttr-Jlttilll because the optical fell'eei.prodiiied b the improved fabric willbe best'iliustrate l withoutsuch detail being will be at once appreciated and fully understood by those skilled in this art. We therefore do not limit ourselves to the specific details shown and described.

We claim:

1. The process of producing warp knitted fabric having longitudinally extending continuous stripes consisting in continuously supplying two threads to each of the needles and more than two threads to each of certain adjoining needles.

2. The process of producing warp knitted fabric having longitudinally extending continuous stripes consisting in supplyii'ig a certain number of threads to each-of certain adjoining needles and more than that num her to each of separated series of adjoining needles.

The process of producing warp knitted fabric having longitudinally extending continuous stripes consisting in supplying two tl'ireadsto each of the needles and more-than two threads to each of separated series of.

adjoining iiee 'llcs, one of said lirst nanied threads passing alone through its appropriate thread guide, and the other (.(ilijnlili ly with the said :ulditional threador threads through its appropriate thread guide, and laid up parallel with said. additional thread addvd thi'rarl z i'inay be of a diil'erent gage i or threads in the linished product.

*L The method of making warp knitted fabric ronsisling in ('ontinuonsly supplying to the needles three or more threads and I from tliat-of 'i htsother threads and. ina also g be of 'dill'i-ren't nuuerial'and of a dill'vrt-nt color and thus the strength, iost and uptiral i-ll'ect of the linished fabric be varied. 35 it will also be obvious that one or more additional beanis'niay beaddi-d to the. lna h'ine so that at. such times as desired. still other additional ihreads may be introdmred. .ll. is unne essary to illustrate sin-h llNNlllhtllions because the are all learl i' within the pnriii-w of the inrcption as (liSl'lHHPll nil thread guidt-sand to predvli-rniined adjoining needles diil'criiig numbers of threads.

in i('Hliil|Uil where-oi we ha re signed our uann-- lo this speizilii'zation.

leading lhrouglr iri-di-leriniin-il adjoining 

